Use jquery to implement select addition to achieve the effect of background permission addition_jquery

Ugh. It's actually a very simple thing. Image of the page

Both lists can be multiple-selected,

Achieve the following effects:

1. Double-click any list item in the first list to add downwards

2. Double-click any list item in the second list to delete it,

2. Click the button to realize the corresponding function.

Html code

Copy code The code is as follows:

Shanghai
Guangzhou
< option value="333">Shandong
Changzhou




< ;br/>

jquery code

Copy code The code is as follows: